Quote Originally Posted by 00CelicaGT View Post
$6 vs $500+, you do the math.
i used one on my celica for a while, best $6 I ever spent lol
agreed.

Update, I did the homemade cat-defouler and the car passed emissions perfectly. I will be getting kpro eventually, but I needed the car registered before I went back to school. Thank you all for the help!